Doña Paula 1350 comes from two blocks (No.10 and No.7) in the Alluvia vineyard, which is located in Gualtallary, at 1,350 meters above sea level. The soil is sandy, with alluvial and calcareous stones; the calcium carbonate content ranges from medium to very high with caliche which is present in very old soils, where the vine vigour is reduced resulting in concentrated flavours in the grapes. The Uco Valley is renowned for its warm days and cool nights and has an average temperature variation of 12.5 °C. This encourages a long, slow ripening period where the grapes gradually produce rich fruit flavours, balanced by fresh acidity and pronounced aromatics. The average annual rainfall is 280 millimetres. Snow-melt water and drip irrigation systems are used to nourish the espalier-trained vines, which yield 10 tonnes per hectare. At Doña Paula, the vineyards have always been managed using sustainable agricultural practices and the grapes are manually harvested. The blend comprises a small quantity of Casavecchia, an extremely rare red grape variety from Campania, Italy. Casavecchia has high levels of anthocyanins which impart its wines with deep colours and strong, supple tannins.
The grapes were gently destemmed without crushing. Each variety was vinified separately and underwent cold maceration in stainless steel tanks, to extract the primary aromas. Once fermentation was complete, the wines were blended. Maturation lasted for 16 months, in French oak barrels, of which 20% were new.